Dli Failures - Samsung OfficeServ 12 Service Manual

3.4 DLI Failures

Failure 1
When No Power is supplied to the DLI port.
Troubleshooting 1
Check the voltage of the tip and ring
Are they higher than -40 V?
No
Check the polyswitch of the
corresponding port
Is polyswitch normal?
No
Replace the polyswitch
END
© SAMSUNG Electronics Co., Ltd.
Yes
Replace the keyset
Yes
Replace the Transformer(DCT-1) of the
corresponding port
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